A questionnaire for determining prevalence of diabetes related foot disease (Q-DFD): construction and validation

Bergin, Brand, Colman, Campbell

Description

Community based prevalence for diabetes related foot disease (DRFD) has been poorly quantified in Australian populations. The aim of this study was to develop and validate a survey tool to facilitate collection of community based prevalence data for individuals with DRFD via telephone interview. Methods Agreed components of DRFD were identified through an electronic literature search. Expert feedback and feedback from a population based construction sample were sought on the initial draft. Survey reliability was tested using a cohort recruited through a general practice, a hospital outpatient clinic and an outpatient podiatry clinic. Level of agreement between survey findings and either medical record or clinical assessment was evaluated. Results The Questionnaire for Diabetes Related Foot Disease (Q-DFD) comprised 12 questions aimed at determining presence of peripheral sensory neuropathy (PN) and peripheral vascular disease (PVD), based on self report of symptoms and/or clinical history, and self report of foot ulceration, amputation and foot deformity. Survey results for 38 from 46 participants demonstrated agreement with either clinical assessment or medical record (kappa 0.65, sensitivity 89.0%, and specificity 77.8%). Correlation for individual survey components was moderate to excellent. Inter and intrarater reliability and test re-test reliability was moderate to high for all survey domains. Conclusion The development of the Q-DFD provides an opportunity for ongoing collection of prevalence estimates for DRFD across Australia.

Informations

• Publié par: biomed
• Publié le: 01 janvier 2009
• Nombre de lectures: 23
• Langue: English

Extrait

Journal of Foot and Ankle Research

BioMedCentral

Open Access Research A questionnaire for determining prevalence of diabetes related foot disease (Q-DFD): construction and validation 1,2 †3,4 †2 Shan M Bergin* , Caroline A Brand , Peter G Colman and †5 Donald A Campbell

1 2 Address: Monash Institute of Health Services Research, Monash University, Kanooka Gve Clayton, Melbourne, Australia, Department of Diabetes 3 and Endocrinology, The Royal Melbourne Hospital, Gratten St, Parkville, Melbourne, Australia, Clinical Epidemiology and Health Service 4 Evaluation Unit, The Royal Melbourne, Hospital, Gratten St, Parkville, Melbourne, Australia, Centre for Research Excellence in Patient Safety, 5 Monash University, Melbourne, Australia and Department of General Medicine, Monash University, Wellington Rd, Clayton, Melbourne, Australia Email: Shan M Bergin*  [e-mail]; Caroline A Brand  [e-mail]; Peter G Colman  [e-mail]; Donald A Campbell  [e-mail] * Corresponding author †Equal contributors

Published: 25 November 2009 Received: 21 September 2009 Accepted: 25 November 2009 Journal of Foot and Ankle Research2009,2:34 doi:10.1186/1757-1146-2-34 This article is available from: http://www.jfootankleres.com/content/2/1/34 © 2009 Bergin et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract Background:Community based prevalence for diabetes related foot disease (DRFD) has been poorly quantified in Australian populations. The aim of this study was to develop and validate a survey tool to facilitate collection of community based prevalence data for individuals with DRFD via telephone interview. Methods:Agreed components of DRFD were identified through an electronic literature search. Expert feedback and feedback from a population based construction sample were sought on the initial draft. Survey reliability was tested using a cohort recruited through a general practice, a hospital outpatient clinic and an outpatient podiatry clinic. Level of agreement between survey findings and either medical record or clinical assessment was evaluated. Results:The Questionnaire for Diabetes Related Foot Disease (Q-DFD) comprised 12 questions aimed at determining presence of peripheral sensory neuropathy (PN) and peripheral vascular disease (PVD), based on self report of symptoms and/or clinical history, and self report of foot ulceration, amputation and foot deformity. Survey results for 38 from 46 participants demonstrated agreement with either clinical assessment or medical record (kappa 0.65, sensitivity 89.0%, and specificity 77.8%). Correlation for individual survey components was moderate to excellent. Inter and intrarater reliability and test re-test reliability was moderate to high for all survey domains. Conclusion:The development of the Q-DFD provides an opportunity for ongoing collection of prevalence estimates for DRFD across Australia.

Background Diabetes related foot disease (DRFD) describes a number of complications of diabetes that can occur simultane ously or in isolation. Peripheral neuropathy (PN), periph

eral vascular disease (PVD), foot ulceration and amputation contribute significantly to the high rates of morbidity and mortality affecting individuals with diabe tes [16]. Despite the burden of foot disease on both the

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